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Title of Journal: J Radioanal Nucl Chem

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Abbravation: Journal of Radioanalytical and Nuclear Chemistry

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Springer Netherlands

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DOI

10.1002/chin.199303107

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ISSN

1588-2780

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Characterization of nanoiron oxyhydroxides and th

Authors: Y B Sun Q Wang S T Yang G D Sheng Z Q Guo
Publish Date: 2011/07/10
Volume: 290, Issue: 3, Pages: 643-648
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Abstract

The nanoiron oxyhydroxides α and γFeOOH were synthesized by using three ferrous and ferric salts FeSO4 FeCl2 FeNO33 as iron precursors under alkaline conditions Morphologies of nanoiron oxyhydroxides were characterized by employing Xray powder diffraction XRD and specific surface area SSA analysis respectively The occurrence of needlelike shape of nanogoethite and rodlike shape of nanolepidocrocite were attributed to hydrolysis of Fe3+ cations and/or oxidization of Fe2+ at alkaline conditions in terms of XRD analysis The N2BET SSA and BJH Barrett–Joyner–Halenda pore size analysis showed that internal SSA of nanolepidocrocite is higher than that of nanogoethite although they have similar N2BET SSAs The distribution of average pore size of nanoiron oxyhydroxides are higher than that of predominant pore size due to formation of the heterogeneous nanoparticles under the experimental conditions These nanoparticles possess the high sorption capacity and the strong affinity for contaminants Application of nanoiron oxyhydroxides in environmental engineering plays an important role to remove a variety of contaminants such as heavymetal ions and organic pollutants

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  11. Modified TTA method for the determination of plutonium
  12. Application of radiometric method for element migration determination from plastic packaging to food
  13. Study of Doppler broadening of gamma-ray spectra in 14-MeV neutron activation analysis
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